Higher-derivative couplings in string theory: five-point contact terms

James T. Liu; Ruben Minasian

Higher-derivative couplings in string theory: five-point contact terms

High Energy Physics - Theory 2021-04-20 v3

Authors: James T. Liu , Ruben Minasian

Abstract

We compute the tree-level $H^2R^3$ couplings of type II strings and provide some basic tests of the couplings by considering both K3 and Calabi-Yau threefold compactifications. Curiously, additional kinematical structures show up at tree level that are not present in the one-loop couplings. This has interesting implications for type II supersymmetry as well as $SL(2, \mathbb Z)$ duality in type IIB strings.

Keywords

string theory compactifications string theory f-theory compactification

Cite

@article{arxiv.1912.10974,
  title  = {Higher-derivative couplings in string theory: five-point contact terms},
  author = {James T. Liu and Ruben Minasian},
  journal= {arXiv preprint arXiv:1912.10974},
  year   = {2021}
}

Comments

29 pages, references added and discussion on SL(2,Z) and U(1) violating terms and the CP-odd sector in the IIB effective action improved

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